scholarly journals Interaction of metalloporphyrins with lipid bilayers, a calorimetric study

2011 ◽  
Vol 34 (1) ◽  
pp. 11-14
Author(s):  
Katarzyna Pamin ◽  
Jan Połtowicz ◽  
Joanna Kiełkowicz ◽  
Andrzej Hendrich
Keyword(s):  
Experimental Data ◽  
Phase Transitions ◽  
Lipid Bilayer ◽  
Lipid Bilayers ◽  
Electrostatic Interactions ◽  
Acyl Chain ◽  
Head Group ◽  
Calorimetric Study ◽  
Polar Head Group ◽  
Polar Head

Interaction of metalloporphyrins with lipid bilayers, a calorimetric studyThe interaction of three metalloporphyrins, containing manganese, iron and cobalt atoms, with lipid bilayers composed of neutral (DPPC) or charged (DMPG) phospholipids were studied by means of scanning differential calorimetry. We found only minute effects exerted by studied compounds on DPPC, while phase transitions of charged DMPG were seriously affected by porphyrins. Analysis of experimental data revealed that due to the electrostatic interactions DMPG bilayers are perturbed not only in the polar head group region. Putative rearrangements of the polar heads packing affects also the acyl chain region of this lipid bilayer. Perturbation of DMPG polar heads induced by porphyrin in complex with manganese atoms is bigger than that induced by other porphyrins.

The effect of polar head group of dodecyl surfactants on the growth of wheat and cucumber

Chemosphere ◽  
2020 ◽  
Vol 254 ◽  
pp. 126918
Author(s):  
Aleksandar Tot ◽  
Ivana Maksimović ◽  
Marina Putnik-Delić ◽  
Milena Daničić ◽  
Slobodan Gadžurić ◽  
...  
Keyword(s):  
Head Group ◽  
Polar Head Group ◽  
Polar Head

Glycosylinositol phosphoceramide-specific phospholipase D activity catalyzes transphosphatidylation

2019 ◽  
Vol 166 (5) ◽  
pp. 441-448 ◽  
Author(s):  
Rumana Yesmin Hasi ◽  
Makoto Miyagi ◽  
Katsuya Morito ◽  
Toshiki Ishikawa ◽  
Maki Kawai-Yamada ◽  
...  
Keyword(s):  
Chain Length ◽  
Phospholipase D ◽  
Secondary Alcohol ◽  
Primary Alcohol ◽  
Tertiary Alcohol ◽  
Head Group ◽  
Polar Head Group ◽  
Polar Head ◽  
A Chain ◽  
Sugar Chains

Abstract Glycosylinositol phosphoceramide (GIPC) is the most abundant sphingolipid in plants and fungi. Recently, we detected GIPC-specific phospholipase D (GIPC-PLD) activity in plants. Here, we found that GIPC-PLD activity in young cabbage leaves catalyzes transphosphatidylation. The available alcohol for this reaction is a primary alcohol with a chain length below C4. Neither secondary alcohol, tertiary alcohol, choline, serine nor glycerol serves as an acceptor for transphosphatidylation of GIPC-PLD. We also found that cabbage GIPC-PLD prefers GIPC containing two sugars. Neither inositol phosphoceramide, mannosylinositol phosphoceramide nor GIPC with three sugar chains served as substrate. GIPC-PLD will become a useful catalyst for modification of polar head group of sphingophospholipid.

Changes in phospholipid polar head group turnover in SV40-transformed hamster fibroblasts

FEBS Letters ◽  
1982 ◽  
Vol 139 (2) ◽  
pp. 217-220 ◽  
Author(s):  
Cécile Maziére ◽  
Jean-Claude Maziére ◽  
Liliana Mora ◽  
Jacques Polonovski
Keyword(s):  
Head Group ◽  
Polar Head Group ◽  
Polar Head
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